Late... Reasons.... Baby?

Had my bc implant taken or 2 months ago because it was time to have it changed. The last 6 months of having it my body went crazy. My hormones fluctuated too much I bled constantly, etc . I want another but my doctor said wait until my body related itself back to normal thinking it might reset and I wouldn't have any issues with the next implant. I agreed cuz up until that point it worked wonderfully for me. The first period after removal was normal. This month my period was suppose to start on Monday but didn't. I know I had a slight yeast infection from being in antibiotics for a sinus infection but I used monostat at the first sign of it so all the symptoms are gone now. Still no period. Not sure if the delay is because of the infection, my body just being weird as I have a history of cysts and irregular cycles or if I'm actually pregnant. I won't take a pregnancy test until I'm at least a week late, don't want to jump the gun and freak my SO out. He has been on the fence about having a kid right now or not because of issues he's having with his ex wife and the daughter they have together (I guess not wanting her to get pissed because of him having a child with someone else and taking his daughter from him). I know if I was pregnant he would be happy, he loves children and does want a baby with me but I know it would also cause him stress. Not sure what to do but wait it out for now. He knows I'm late but isn't worried about it. Any opinions?