He didn't get in nor ejaculated near to my genitals. But, the ejaculation on his hand after some time touched my genitals (not sure if dried). I got my periods but irregular. Not normal. It lasted a day or 2. Please advise.

The reason to put this question on is, I am experiencing symptoms like irritation, bloating, constipation food carving, dizziness/tiredness . So iam worried.
Will there be a chance for pregnancy? If there is a chance how can I confirm it?