Help Me Save My Marriage!

Please help! I don't know what has been going on lately. I have had the nexplanon implant for about two months now. I used to be a "peppy-outgoing-always-laughing" wife, but now I find myself offended at everything my husband says which starts a fight. Like today, we were talking about me finding a new job and he made a harmless joke and I cried for no reason at all. My hubby keeps saying that he misses the way I would smile, the way I would laugh which then causes me to cry. I find myself avoiding him so that I won't hurt him anymore. Now is this a possible side effect of the Nexplanon combined with PMS or am I just being too sensitive?