Did I mess up?

In my TWW 2 dpo today and for the past week I've been very stopped up. I mean to the point where my stomach felt like rocks and my back started hurting. I get constipated like this every once on awhile, but this time was the worst. I broke down and took some laxatives, but now Im regretting it. My stomach is cramping and I was able to go, but what I'm worried the laxatives could mess up the conception process. I read and studied up on not using them while pregnant, but what about TTC? Will laxatives have any effect on the egg implanting or the sperm fertilizing it? Please help.