The transition to parenthood is arguably one of the most profound changes聽we experience in life 鈥 and since it鈥檚 such a big deal, it鈥檚 also really overwhelming for most new parents. In addition to scouring sites for chic聽nursery decor and preparing your original child (AKA your dog)聽for your first baby, you also have to make serious parenting decisions聽with your partner. With so much to think about, it makes sense that your relationship 鈥 the thing that created your baby in the first place 鈥 can take a back seat. Researchers at the University of Miami and University of Denver took an in-depth look at all the research currently out there, and affirmed that the transition to parenthood is tough (duh). But they also shared why it鈥檚 more difficult for some couples and outlined some scientifically backed ways couples can prepare their聽relationship for baby number one.

Happy young lesbians playing with baby boy in bed

鈥淭he birth of a first baby 鈥 often referred to as the transition to parenthood 鈥 is both a time of great joy and great stress for new parents,鈥 the study says.聽While stress and joy are inevitable during the first few months as a new parent, how MUCH stress and joy depends on a few key variables.

FOUR THINGS THAT MAY AFFECT YOUR RELATIONSHIP WHEN BABY COMES

1. Whether the Parents Are Married or Not:聽As many people are putting off marriage, saying that it鈥檚 just a social institution, the new analysis of research showed that maybe that ring does matter. Case in point: Unmarried couples experienced slightly more relationship dissatisfaction than married couples after having a child. The researchers found the same correlation in same-sex couples as heterosexual couples (go gay marriage).

2. Whether the Baby Is Biological or Adopted:聽Citing the planned nature of having a child, the study claimed that parents who adopt their first baby experience fewer deteriorations in their relationship after bringing their bundle of joy home. In fact, these couples actually saw increases in relationship satisfaction in many cases. That鈥檚 awesome news for couples that adopt.

Happy parents playing with baby girl

3. A Couple鈥檚 Attachment Style:聽The foundation of many romantic relationships is attachment 鈥 which can be a great or a bad thing. In the case of having a baby, people with anxious attachment (which means they rely really heavily on their partner and can feel insecure about their relationship) experience more declines in relationship satisfaction after welcoming a baby聽than people with secure attachment styles. Build trust with your partner before bringing baby on board.

4. Employment and Income Levels:聽It鈥檚 no surprise that bringing a life into the world is expensive, and therefore has the potential to be super financially stressful. The study confirmed this truth, finding that couples with higher levels of income tend to be less stressed than those strapped for cash.

Any number of these variables can determine the trajectory of your relationship after becoming a parent; however, there鈥檚 one trend the study found that鈥檚 practically inevitable no matter the nature of your relationship. 鈥淎s children grow older, parents and non-parent do not differ markedly in levels of relationship functioning,鈥 the study says. One more reason to look forward to growing old together!

Did your relationship change when baby number one came home? Let us know how @BritandCo.

(Photos via Getty)